Compress a PNG to 100 KB
A 100 KB budget suits most PNG content: screenshots for documentation, UI mockups, charts and logos. Because PNG is lossless, the tool fits your file by scaling dimensions; for photographic content it will honestly do better if you switch the output to JPG or WebP.
Drop images here — or click to browse, or paste with Ctrl+V
JPG · PNG · WebP — processed on your device, never uploaded
How it works
- Open this page — the compressor is already set for “Compress PNG to 100 KB”.
- Drop your image into the box, click to browse, or paste it with Ctrl+V.
- The tool re-encodes the image on your own device until it fits the target — nothing is uploaded.
- Check the preview and file size on the result card, then download.
Why PNG for this job
PNG is lossless — there is no quality dial to turn — so the only way to reach 100 KB is reducing pixel dimensions. The tool scales the image down in measured steps until it fits.
PNG is the right format for screenshots, diagrams, logos and anything with sharp edges or transparency. For photographs, a JPG at the same byte size will look substantially better; if your destination accepts JPG, use it for photos.
Frequently asked questions
Screenshots of text look blurry after shrinking — how do I avoid that?
Capture at the size you need instead of scaling a huge screenshot down: crop the relevant window region rather than the full 4K desktop. Less scaling means sharper text at the same byte size.
PNG or WebP for screenshots with a size cap?
WebP’s lossless mode typically beats PNG by 20–30% on screenshots, so WebP fits the same image at larger dimensions. Use PNG when the destination requires it; otherwise try WebP output here and compare — it’s instant and local.